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create vdisk - g3 msa best practices

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create vdisk Description Creates a vdisk using the specified RAID level, disks, and spares. All disks used in a vdisk and its spares must be either SAS or SATA; mixing disk types is not supported. For each RAID level, the minimum and maximum numbers of disks supported are: • NRAID: 1 • RAID 0: 2-16 • RAID 1: 2 • RAID 3: 3-16 • RAID 5: 3-16 • RAID 6: 4-16 • RAID 10: 4-16 • RAID 50: 6-32 For best practices for creating vdisks, see the SMU reference guide. Syntax create vdisk level nraid|raid0|r0|raid1|r1|raid3|r3|raid5|r5|raid6|r6|raid10|r10 |raid50|r50 disks disks [assigned-to a|b|auto] [spare disks] [chunk-size 16k|32k|64k] [mode online|offline] name Parameters level nraid|raid0|r0|raid1|r1|raid3|r3|raid5|r5|raid6|r6|raid10|r10 |raid50|r50 Specifies the RAID level. disks disks IDs of the disks to include in the vdisk. RAID 10 requires a minimum of two RAID-1 sub-vdisks each having two disks. RAID 50 requires a minimum of two RAID-5 sub-vdisks each having three disks. For disk syntax, see Command syntax on page 21. assigned-to a|b|auto Optional. For a system operating in Active-Active ULP mode, this specifies the controller to own the vdisk. To let the system automatically load-balance vdisks between controllers, use auto or omit this parameter. In Single Controller mode, this parameter is ignored; the system automatically load-balances vdisks in anticipation of the insertion of a second controller in the future. spare disks Optional. IDs of 1-4 dedicated spares to assign to a RAID 1, 3, 5, 6, 10, or 50 vdisk. For disk syntax, see Command syntax on page 21. chunk-size 16k|32k|64k Optional. The amount of contiguous data, in KB, that is written to a vdisk member before moving to the next member of the vdisk. For RAID 50, this option sets the chunk size of each RAID-5 subvdisk. The chunk size of the RAID-50 vdisk is calculated as: configured-chunk-size x (subvdisk-members - 1). For NRAID and RAID 1, chunk-size has no meaning and is therefore not applicable. The default and maximum size is 64k. mode online|offline Optional. Specifies whether the vdisk is initialized online or offline. • online: Enables you to use the vdisk immediately after creating it while it is initializing. Because online uses the verify method to create the vdisk, it takes longer to complete initializing than offline. Online initialization is fault-tolerant. This option is the default. • offline: You must wait for the vdisk initialization process to finish before using the vdisk; however, offline takes less time to complete initializing than online. HP P2000 G3 MSA System CLI Reference Guide 61

Section	Page
HP P2000 G3 MSA System CLI Reference Guide	1
Contents	3
Tables	9
About this guide	11
Intended audience	11
Prerequisites	11
Related documentation	11
Document conventions and symbols	12
HP technical support	12
Product warranties	13
Subscription service	13
HP web sites	13
Documentation feedback	13
Using the CLI	15
Accessing the CLI	15
CLI output formats	15
Using CLI interactively	16
Using a script to access the CLI	16
Using the XML API	18
Scripting guidelines	19
XML API examples	20
XML API optimization	20
Command syntax	21
Command names and parameters	21
Disks	21
Vdisks	22
Volumes	22
Ports	22
Command completion, editing, and history	22
Viewing help	23
Size representations	23
Event log	24
Categorical list of commands	25
Alphabetical list of commands	29
abort replication	30
abort scrub	31
abort verify	32
abort volumecopy	33
add replication-volume	34
clear cache	36
clear disk-metadata	37
clear events	39
clear expander-status	40
convert master-to-std	41
convert std-to-master	42
create chap-record	43
create host	44
create master-volume	45
create remote-system	47
create replication-set	48
create schedule	52
create snap-pool	54
create snapshots	55
create task	56
create user	59
create vdisk	61
create volume	63
create volume-copy	65
create volume-set	66
delete all-master-volumes	69
delete all-snapshots	70
delete chap-records	71
delete global-spare	72
delete host	73
delete master-volume	74
delete remote-system	75
delete replication-set	76
delete schedule	77
delete snap-pool	78
delete snapshot	79
delete snapshot-write-data	80
delete task	81
delete user	82
delete vdisks	83
delete vdisk-spare	84
delete volumes	85
dequarantine	86
detach replication-volume	88
exit	89
expand snap-pool	90
expand vdisk	91
expand volume	92
export snapshot	93
map volume	94
meta	97
ping	98
reattach replication-volume	99
remote	100
remove replication-volume	101
replicate snapshot	102
replicate volume	103
rescan	104
reset all-statistics	105
reset controller-statistics	106
reset disk-error-statistics	107
reset disk-statistics	108
reset host-link	109
reset host-port-statistics	110
reset snapshot	111
reset vdisk-statistics	112
reset volume-statistics	113
restart	114
restore defaults	115
resume replication	116
rollback master-volume	117
scrub vdisk	118
set advanced-settings	119
set auto-write-through-trigger	122
set awt	123
set cache-parameters	124
Cache write policy	125
Cache optimization mode	125
Cache read-ahead size	125
set chap-record	126
set cli-parameters	127
set controller-date	129
set debug-log-parameters	131
set disk-parameters	132
set email-parameters	133
set enclosure	134
set expander-fault-isolation	135
set expander-phy	136
set host-name	137
set host-parameters	138
set iscsi-parameters	141
set job-parameters	143
set led	144
set network-parameters	145
set ntp-parameters	147
set password	148
set priorities	149
set prompt	150
set protocols	151
set remote-system	152
set replication-external-view	153
set replication-primary-volume	154
set replication-volume-parameters	155
set schedule	157
set snap-pool-policy	158
set snap-pool-threshold	160
set snmp-parameters	161
set spares	162
set system	163
set task	164
set user	166
set vdisk	168
set volume	169
show advanced-settings	170
show auto-write-through-trigger	172
show awt	173
show cache-parameters	174
show chap-records	176
show cli-parameters	177
show configuration	179
show controller-date	180
show controllers	181
show controller-statistics	183
show debug-log-parameters	184
show disk-parameters	185
show disks	186
show disk-statistics	189
show email-parameters	190
show enclosures	191
show enclosure-status	192
show events	194
show expander-status	196
show frus	199
show host-maps	201
show host-parameters	203
show host-port-statistics	206
show hosts	207
show inquiry	208
show iscsi-parameters	209
show job-parameters	210
show license	211
show master-volumes	213
show network-parameters	215
show ntp-status	217
show ports	218
show power-supplies	220
show priorities	221
show protocols	222
show redundancy-mode	223
show refresh-counters	224
show remote-systems	225
show replication-images	226
show replication-sets	228
show replication-volumes	232
show sas-link-health	235
show schedule-details	236
show schedules	237
show sensor-status	239
show shutdown-status	241
show snap-pools	242
show snapshots	244
show snmp-parameters	246
show system	247
show system-parameters	248
show task-details	249
show tasks	254
show unwritable-cache	260
show users	261
show vdisks	262
show vdisk-statistics	264
show versions	265
show volumecopy-status	266
show volume-maps	267
show volume-names	269
show volumes	270
show volume-statistics	272
shutdown	273
start vdisk	274
stop vdisk	275
suspend replication	276
test	277
trust	278
unmap volume	279
verify links	280
verify remote-link	282
verify vdisk	283
versions	284
volumecopy	285
XML API basetype properties	287
advanced-settings-table	288
attribute-priorities	293
auto-write-through-trigger	294
cache-parameter	296
cache-settings	298
chap-records	299
cli-parameters	300
compact-flash	303
controller-cache-parameters	305
controllers	307
controller-statistics	311
debug-log-parameters	313
disk-statistics	318
drive-parameters	320
drives	322
email-parameters	327
enclosure-components	329
enclosure-fru	330
enclosure-list	332
enclosures	333
events	337
expander-ports	338
fan	340
fc-port	342
host-port-statistics	343
hosts	344
host-view	345
host-view-mappings	346
inquiry	347
iscsi-parameters	348
iscsi-port	350
job-parameters	351
license	352
log-header-table	355
master-volumes	356
network-parameters	357
ntp-status	358
policy-threshold	359
port	360
power-supplies	363
redundancy	366
refresh-counters	368
remote-addresses	370
remote-links	371
remote-system	372
replicate-volume-tasks	374
replication-image	375
replication-image-params	376
replication-set	378
replication-volume	379
replication-volume-summary	383
reset-snapshot-tasks	384
sas-port	385
sas-status-controller-a	386
schedules	389
security-communications-protocols	390
sensors	392
ses	393
shutdown-status	395
snap-pools	396
snapshots	397
snapshot-with-retention-tasks	400
snap-tasks	401
snmp-parameters	402
status	403
system	404
system-parameters-table	406
tasks	409
time-settings-table	411
unhealthy-component	412
unwritable-cache	413
users	414
vdisk-statistics	416
versions	417
virtual-disks	418
volume-copy-status	424
volume-copy-tasks	425
volume-names	426
volumes	427
volume-statistics	431
volume-view	433
volume-view-mappings	434
Settings changed by restore defaults	435
Glossary	437

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HP P2000 G3 MSA System CLI Reference Guide

create vdisk

Description

Creates a vdisk using the specified RAID level, disks, and spares. All disks used in a vdisk and its

spares must be either SAS or SATA; mixing disk types is not supported.

For each RAID level, the minimum and maximum numbers of disks supported are:

•

NRAID: 1

•

RAID 0: 2–16

•

RAID 1: 2

•

RAID 3: 3–16

•

RAID 5: 3–16

•

RAID 6: 4–16

•

RAID 10: 4–16

•

RAID 50: 6–32

For best practices for creating vdisks, see the SMU reference guide.

Syntax

create vdisk

level nraid|raid0|r0|raid1|r1|raid3|r3|raid5|r5|raid6|r6|raid10|r10

|raid50|r50

disks

[assigned-to a|b|auto]

[spare

disks

]

[chunk-size 16k|32k|64k]

[mode online|offline]

name

Parameters

level nraid|raid0|r0|raid1|r1|raid3|r3|raid5|r5|raid6|r6|raid10|r10

|raid50|r50

Specifies the RAID level.

disks

IDs of the disks to include in the vdisk. RAID 10 requires a minimum of two RAID-1 sub-vdisks each

having two disks. RAID 50 requires a minimum of two RAID-5 sub-vdisks each having three disks.

For disk syntax, see

Command syntax

on page 21.

assigned-to a|b|auto

Optional. For a system operating in Active-Active ULP mode, this specifies the controller to own the

vdisk. To let the system automatically load-balance vdisks between controllers, use auto or omit this

parameter. In Single Controller mode, this parameter is ignored; the system automatically

load-balances vdisks in anticipation of the insertion of a second controller in the future.

spare

disks

Optional. IDs of 1–4 dedicated spares to assign to a RAID 1, 3, 5, 6, 10, or 50 vdisk. For disk

syntax, see

Command syntax

on page 21.

chunk-size 16k|32k|64k

Optional. The amount of contiguous data, in KB, that is written to a vdisk member before moving to

the next member of the vdisk. For RAID 50, this option sets the chunk size of each RAID-5 subvdisk.

The chunk size of the RAID-50 vdisk is calculated as:

configured-chunk-size

x (

subvdisk-members

- 1).

For NRAID and RAID 1,

chunk-size

has no meaning and is therefore not applicable. The default

and maximum size is

64k

mode online|offline

Optional. Specifies whether the vdisk is initialized online or offline.

•

online

: Enables you to use the vdisk immediately after creating it while it is initializing.

Because online uses the verify method to create the vdisk, it takes longer to complete initializing

than offline. Online initialization is fault-tolerant. This option is the default.

•

offline

: You must wait for the vdisk initialization process to finish before using the vdisk;

however, offline takes less time to complete initializing than online.